Cultivator attachment.



E. W. CORNELL.

GULTIVATOR ATTAGHMENT' v APPLICATION FILED FEES, 1910.

973,480. I Y Patented Oct. 25, 1910.

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APPLICATION FILED 131m, 1910.

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ELMER W. CORNELL, 0F TRAVERSE CITY, MICHIGAN.

CULTIVATOR ATTACHMENT.

Specification of Letters Patent.

Patented Oct. 25, 1910.

Application filed February 3, 1910. Serial No. 541,688.

To all whom it may concern:

Be it known that I, ELMER WV. CORNELL, a citizen of the United States,residing at Traverse City, in the county of Grand Traverse and State ofMichigan, have invented a new and useful Cultivator Attachment, of whichthe following is a specification.

This invention has relation to cultivator attachments and it consists inthe novel construction and arrangement of its parts as hereinafter shownand described.

The object of the invention is to provide an attachment of simple andlight structure adapted to be applied to the frame of a cultivator to beused as a weeder and soil pulverizer.

WVith the above object in view, the attachment includes a frame made upof bars (preferably of angle iron) which may be so connected andover-lapped as to securely brace each other and. brackets mounted uponthe frame of which the said bars form component parts, whereby theattachment may be connected with the frame of a cultivator. Spring armsmay be'adjustab-ly connected with the frame as indicated, and the saidarms may carry teeth adapted to engage the soil and operate as weedersor pulverizers.

In the accompanying drawings :Figure 1 is a top plan view of theattachment showing one arrangement of the component parts of the framethereof. Fig. 2 is a top plan view of the attachment showing anotherarrangement of the component parts of the frame thereof. Fig. 3 is anend elevation of the attachment. Fig. 4 is a vertical sectional view ofthe attachment.

The frame of the attachment includes a perforated front bar 1 andperforated rear bars 2 and 3. The inner end portions of the rear bars 2and 3 overlap each other, and the said bars are secured together bypassing a bolt through registering perforations therein. Inasmuch as thebars 2 and 3 are provided each with a series of perforations, it isapparent that the said bars may be adjusted longitudinally and securedin adjusted position. Cross-bars 5 are located under the bars 1, 2 and3, and are adjustably secured at their forward ends to the bar 1 bymeans of bolts 6 which pass transversely through the said bars and anyone of a series of perforations 7, with which each cross-bar 5 isprovided. The rear portions of the bars 5 are secured either to the bar2 or the bar 3. Thus it will be seen that means is provided for spacingthe bar 1 at any desired distance from the rear bars 2 and 3. The bars 5are normally disposed at the right angles to the bars 1, 2 and 3, as

illustrated in Figs. 1 and 2 of the drawings. End bars 8 are providedand the said bars are each provided with a series of bolt perforations9. The bars 8 may be connected with the ends of the bar 1 at theirforward ends, and adjustably connected'at their rear ends with the outerends of the bars 2 and in the manner as illustrated in Fig. 1 of thedrawings, or the bars 9 may be alined with the bar 1 and secured to theends thereof in the manner as illustrated in Fig. 2 of the drawings.

Curved brackets 10 are mounted upon the bars 1, 2 and 3 and are providedwith plane sections 11, which are adapted to lie under the said bars 1,2 and 3, and which are secured to the said bars by means of the boltsused for securing'the bars together or bolts (hereinafter to bementioned), which attach spring arms to the frame structure. Then theattachment is applied to the frame 12 of a cultivator, or similarimplement, a bolt 13, is passed through the forward end of the brackets10, and the said brackets are provided at points between their ends,each with a series of bolt perforations 14, any one of which may receivea bolt 15 for adjustably connecting the intermediate portions of thesaid brackets to the frame 13 of the cultivator, or other implement. Byproviding the perforations 14: in the brackets 10 it is possible to varythe angle of the plane of the frame of the attachment with respect tothe frame of the cultivator. Spring arms 16 are bolted at their upperends to the under sides of the bars 1, 2, 3 and 8, and the said arms 16are provided at their lower ends with sockets 17 adapted if so desiredto receive teeth (not shown).

When the parts of the attachment are arranged as illustrated in Fig. 1of the drawings, it is adapted to operate upon the soil between adjacentrows of plants and when the parts are arranged as illustrated in Fig. 2,the attachment may serve as a straddle row device for the purpose ofoperating upon soil at the opposite sides of a single row of standingplants. It will be seen that by reason of the several sets of bars whichform the frame of the attachment that quite a number of adjustments maybe effected in order that the spring arms 16 maybe so positioned thatthey or the teeth carried thereby may operate to the best advantage uponthe soil.

While in Figs. 3 and 4 of the drawings the brackets 10 are illustratedwith their ends forwardly disposed, it will be apparent that the saidbrackets may be turned around so that their intermediate curved portionswill be forwardly disposed, if such an arrangement should be desired.

The bars 1, 2, 3, 5 and 8 are preferably made from angle iron or steeland when any of the said bars are in alinement with each other, theirends may be overlapped in order that the frame structure may beefiectually braced.

Having described the invention What I claim as new and desire to secureby Letters-Patent is A cultivator attachment comprising a frame made upof a front bar with auxiliary bars adjustably attached to its ends,over-lapped rear bars adjustably connected together, cross-barsadjustably connected with the front and rear bars, securing bolts forfixing the over-lapped and intersecting bars together, bracketsconnected with the front and rear bars of said frame, and adapted to beadjustably connected with a supporting frame, and spring arms connectedwith said front and rear bars of the attachment frame.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

ELMER WV. CORNELL.

WVitnesses:

EDWARD MONROE, CHRISTINE HORMUTI-I.

